1 Peter 1:25 But the word of the Lord endures forever.” Now this is the word which by the gospel was preached to you.
Each of us has a limited lifespan on earth, and each of the possessions we have too are limited. We may have a favourite bible, but the cover and pages soon wear out as we use it.
But the words that are held inside the bible will last forever because that is what God has promised us.
These are the words that Christ used to rebuke Satan and the same words that we need to learn to teach others with. This is the very word of God!